Oral Presentation International Conference on Tomography of Materials & Structures

In-situ X-ray Tomography and Diffraction: Probing Granular Micromechanics and Energy Dissipation During Compaction (49)

Ryan C Hurley 1 2 , Chongpu Zhai 1 , Stephen A Hall 3 4 , Eric B Herbold 5
  1. Hopkins Extreme Materials Institute, Johns Hopkins University, Baltimore, MD, USA
  2. Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
  3. Lund Institute of Advanced Neutron and X-ray Science, Lund, Sweden
  4. Solid Mechanics, Lund University, Lund, Sweden
  5. Computational Geosciences, Lawrence Livermore National Laboratory, Livermore, CA, USA

We combinein-situX-ray computed tomography (XRCT) with 3D X-ray diffraction (3DXRD)to measure both particle kinematics and particle stresses during deformation of granular samples. Using thisapproach, we can calculate inter-particle forces, contact kinematics, and energy dissipation throughout thedeformation process, providing new insight into the statistics and spatial heterogeneity of these processes

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